I am little confused as to exactly which variables are getting set here. The Address and DefaultIP should be multicast IPs (224.x.x.x). Would actually expect an exception to be thrown if are set to 127.0.0.1 (e.g. java.net.SocketException: Not a multicast address). You can set the BindAddress to 127.0.0.1, but this is just basically to indicate which network interface to use. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958175#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...